/Engine/Plugins/Runtime/MassGameplay/Source/MassSpawner/Public/MassEntitySpawnDataGeneratorBase.h
Base class for Mass Entity Spawn Points Generator. A Mass Spawn Points Generator can be of several type (EQS, ZoneGraph, Volume, Area, etc.) The concept is to override the GenerateSpawnPoints() method and requesting a certain number of Spawn Point Locations to the method.
[UCLASS](Programming/UnrealArchitecture/Reference/Classes#classdeclaration)(Abstract, Blueprintable, EditInlineNew) class UMassEntitySpawnDataGeneratorBase : public [UObject](API\Runtime\CoreUObject\UObject\UObject)
uint8:  1
bUseCustomSeed
int32
RandomSelectionSeed